NEW! Just Released: Turbo-Hydramatic 200 250 325 350 375B Manuals!

We are pleased to announce the latest release from the Backyard Engineering Team!

The result of several months effort, it covers these lighter duty Turbo-Hydramatic automatic transmissions used in General Motors products from 1968 and up. This manual features Adjustments, Rebuilding, performance modifications, and real world tips and tricks.

It also is an invaluable reference for sourcing parts and services for your automatic transmission rebuild.This fantastic manual is only available right now, on eBay.

This is a list of currently available products for worldwide shipment: